# PreFlight vs 787 ECL

The clearest difference is review sentiment: PreFlight at 100% against 787 ECL's 0%. PreFlight also leads on in-app purchases (none vs 5) and iOS requirement (11.0 vs 17.6). 787 ECL's advantage is price (Free vs $2.99) and update cadence (monthly vs every 10 months). On ads and device support there is nothing between them.

787 ECL is free to download; PreFlight costs $2.99 up front. 787 ECL sells 5 in-app purchases, starting at $1.99 per month. PreFlight asks for nothing beyond the download.

PreFlight ships an update every 10 months, 787 ECL monthly. The most recent releases landed on June 5, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | PreFlight | 787 ECL |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/787-ecl/id1526036910/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 57 MB | 5 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Mountain Wave Media Ltd](https://appshunter.io/developer/849216893) | [Mohamed Farhadi](https://appshunter.io/developer/1191731876) |

## What reviewers say

### PreFlight

[App page](https://appshunter.io/ios/app/preflight-grob-tutor/id1227306033)

This app helps aircrew practice normal and emergency drills for the Grob Tutor T1 aircraft. It provides instant feedback on instrument and switch selections, serving as a memory aid for flight reference cards.

**Highlights:** Practice normal and emergency drills, Instant feedback on instrument/switch selection, Supports Grob Tutor T1 (Classic & EA), Memory aid for flight reference cards, Designed for aircrew training

**Features:** macOS Compatibility

**In-app purchases:** none


### 787 ECL

[App page](https://appshunter.io/ios/app/787-ecl/id1526036910)

This app provides offline electronic checklists for B787 and B777 aircraft, designed for pilots and aviation enthusiasts. It offers an interactive way to study procedures and aircraft systems for training and self-study purposes.

**Highlights:** Offline Electronic Checklists, Normal and Non-Normal Checklists, Interactive QRH/ECL Logic Study, Simulator Preparation, Self-Study Tool, Long-Haul Downtime Review

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| B787 ECL | $1.99 | per month |
| B787 ECL | $12.99 | per year |
| B787 ECL | Free | one-time |
| B787 ECL - Life Time | $49.99 | one-time |
| B787 ECL - Life Time | $59.99 | one-time |


## Frequently asked questions

### Is PreFlight free?

PreFlight costs $2.99, with no in-app purchases.

### Is 787 ECL free?

787 ECL is free to download, with in-app purchases available.

### Do PreFlight or 787 ECL have ads?

Neither PreFlight nor 787 ECL shows ads.

### Which is updated more often, PreFlight or 787 ECL?

PreFlight ships an update every 10 months, and 787 ECL monthly. Most recently, PreFlight was updated on June 5, 2026 and 787 ECL on June 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*